Pathophysiology Final Exam 2026 | Disease Processes &
Clinical Cases
1. A patient with left-sided heart failure is most likely to present with:
A. Peripheral edema
B. Ascites
C. Pulmonary congestion
D. Hepatomegaly
Answer: C. Pulmonary congestion
Rationale: Left-sided heart failure causes blood to back up into the lungs, leading to
pulmonary edema, crackles, and shortness of breath.
2. Which condition is characterized by autoimmune destruction of pancreatic beta cells?
A. Type 2 Diabetes Mellitus
B. Type 1 Diabetes Mellitus
C. Cushing syndrome
D. Diabetes insipidus
Answer: B. Type 1 Diabetes Mellitus
Rationale: Type 1 diabetes results from autoimmune destruction of insulin-producing beta
cells in the pancreas.
3. A patient with chronic kidney disease commonly develops anemia because:
A. Increased iron destruction occurs
B. The kidneys fail to produce erythropoietin
C. Excess clotting factors are produced
D. Bone marrow infection occurs
Answer: B. The kidneys fail to produce erythropoietin
Rationale: Damaged kidneys cannot produce enough erythropoietin, which stimulates red
blood cell production.
4. Which electrolyte imbalance is most associated with cardiac dysrhythmias?
A. Hypercalcemia
,B. Hypernatremia
C. Hypokalemia
D. Hypermagnesemia
Answer: C. Hypokalemia
Rationale: Low potassium levels interfere with cardiac electrical conduction and can cause
life-threatening arrhythmias.
5. A patient with COPD develops barrel chest primarily due to:
A. Fluid accumulation
B. Chronic hyperinflation of the lungs
C. Pulmonary embolism
D. Pleural collapse
Answer: B. Chronic hyperinflation of the lungs
Rationale: Air trapping in COPD causes lung hyperinflation, increasing the anterior-posterior
chest diameter.
6. What is the primary cause of edema in nephrotic syndrome?
A. Increased serum albumin
B. Reduced plasma oncotic pressure
C. Elevated hemoglobin
D. Increased calcium retention
Answer: B. Reduced plasma oncotic pressure
Rationale: Protein loss in urine decreases albumin levels, lowering oncotic pressure and
causing fluid leakage into tissues.
7. A patient experiencing diabetic ketoacidosis (DKA) would most likely have:
A. Metabolic alkalosis
B. Severe hypoglycemia
C. Ketone accumulation and acidosis
D. Excess insulin production
Answer: C. Ketone accumulation and acidosis
, Rationale: Lack of insulin causes fat breakdown, producing ketones that lead to metabolic
acidosis.
8. Which disease process is associated with demyelination of neurons in the CNS?
A. Parkinson disease
B. Multiple sclerosis
C. Myasthenia gravis
D. Huntington disease
Answer: B. Multiple sclerosis
Rationale: Multiple sclerosis involves immune-mediated destruction of myelin in the central
nervous system.
9. The most common cause of peptic ulcer disease is:
A. Excess calcium intake
B. Viral infection
C. Helicobacter pylori infection
D. Colon cancer
Answer: C. Helicobacter pylori infection
Rationale: H. Pylori damages the gastric mucosa and is strongly linked to peptic ulcer
formation.
10. Which assessment finding is typical of hyperthyroidism?
A. Bradycardia
B. Weight gain
C. Cold intolerance
D. Tachycardia
Answer: D. Tachycardia
Rationale: Increased thyroid hormone elevates metabolic activity, causing rapid heart rate
and heat intolerance.
11. A patient with liver cirrhosis is at risk for bleeding because:
A. Excess platelets are produced
B. The liver cannot synthesize clotting factors adequately
Clinical Cases
1. A patient with left-sided heart failure is most likely to present with:
A. Peripheral edema
B. Ascites
C. Pulmonary congestion
D. Hepatomegaly
Answer: C. Pulmonary congestion
Rationale: Left-sided heart failure causes blood to back up into the lungs, leading to
pulmonary edema, crackles, and shortness of breath.
2. Which condition is characterized by autoimmune destruction of pancreatic beta cells?
A. Type 2 Diabetes Mellitus
B. Type 1 Diabetes Mellitus
C. Cushing syndrome
D. Diabetes insipidus
Answer: B. Type 1 Diabetes Mellitus
Rationale: Type 1 diabetes results from autoimmune destruction of insulin-producing beta
cells in the pancreas.
3. A patient with chronic kidney disease commonly develops anemia because:
A. Increased iron destruction occurs
B. The kidneys fail to produce erythropoietin
C. Excess clotting factors are produced
D. Bone marrow infection occurs
Answer: B. The kidneys fail to produce erythropoietin
Rationale: Damaged kidneys cannot produce enough erythropoietin, which stimulates red
blood cell production.
4. Which electrolyte imbalance is most associated with cardiac dysrhythmias?
A. Hypercalcemia
,B. Hypernatremia
C. Hypokalemia
D. Hypermagnesemia
Answer: C. Hypokalemia
Rationale: Low potassium levels interfere with cardiac electrical conduction and can cause
life-threatening arrhythmias.
5. A patient with COPD develops barrel chest primarily due to:
A. Fluid accumulation
B. Chronic hyperinflation of the lungs
C. Pulmonary embolism
D. Pleural collapse
Answer: B. Chronic hyperinflation of the lungs
Rationale: Air trapping in COPD causes lung hyperinflation, increasing the anterior-posterior
chest diameter.
6. What is the primary cause of edema in nephrotic syndrome?
A. Increased serum albumin
B. Reduced plasma oncotic pressure
C. Elevated hemoglobin
D. Increased calcium retention
Answer: B. Reduced plasma oncotic pressure
Rationale: Protein loss in urine decreases albumin levels, lowering oncotic pressure and
causing fluid leakage into tissues.
7. A patient experiencing diabetic ketoacidosis (DKA) would most likely have:
A. Metabolic alkalosis
B. Severe hypoglycemia
C. Ketone accumulation and acidosis
D. Excess insulin production
Answer: C. Ketone accumulation and acidosis
, Rationale: Lack of insulin causes fat breakdown, producing ketones that lead to metabolic
acidosis.
8. Which disease process is associated with demyelination of neurons in the CNS?
A. Parkinson disease
B. Multiple sclerosis
C. Myasthenia gravis
D. Huntington disease
Answer: B. Multiple sclerosis
Rationale: Multiple sclerosis involves immune-mediated destruction of myelin in the central
nervous system.
9. The most common cause of peptic ulcer disease is:
A. Excess calcium intake
B. Viral infection
C. Helicobacter pylori infection
D. Colon cancer
Answer: C. Helicobacter pylori infection
Rationale: H. Pylori damages the gastric mucosa and is strongly linked to peptic ulcer
formation.
10. Which assessment finding is typical of hyperthyroidism?
A. Bradycardia
B. Weight gain
C. Cold intolerance
D. Tachycardia
Answer: D. Tachycardia
Rationale: Increased thyroid hormone elevates metabolic activity, causing rapid heart rate
and heat intolerance.
11. A patient with liver cirrhosis is at risk for bleeding because:
A. Excess platelets are produced
B. The liver cannot synthesize clotting factors adequately
